Title of article
High Temperature Chemical Reaction of La2O3 in H3BO3 -C System
Author/Authors
Wu Wenyuan، نويسنده , , Xu Jingyu، نويسنده , , Peng Kewu، نويسنده , , Tu Ganfeng، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
4
From page
282
To page
285
Abstract
The high temperature chemical reaction process of La2 O3 in H3BO3-C system was studied by means of XRD and TG-DTA. The results showed that dehydration reaction of H3BO3 occurred in the temperature range of 82 ∼ 390 °C; La2O3 and B2O3 reacted to form LaB3O6, LaBO3, and B4C in the temperature range of 836 ∼ 1400°C; at 1450 °C, B4C and LaBO3 further reacted to form LaB4, and partial LaB4 and B reacted to form LaB6; at 1500 °C, LaB4 and B reacting into LaB6 was the main reaction, and the content of LaB6 increased with prolonging time.
Keywords
boric acid-carbon , lanthanum boride , rare earths , high temperature chemical reaction , Lanthanum oxide
Journal title
Journal of Rare Earths
Serial Year
2007
Journal title
Journal of Rare Earths
Record number
1244702
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